[FIX] bind lifecycle callbacks to component

Before this commit, some of the callbacks were bound to the component
and some were not.
This commit makes all the callbacks bind to the component.

src/component/lifecycle_hooks.ts

@@ -7,44 +7,44 @@ import { nodeErrorHandlers } from "./error_handling";
 
 export function onWillStart(fn: () => Promise<void> | void | any) {
   const node = getCurrent()!;
-  node.willStart.push(fn);
+  node.willStart.push(fn.bind(node.component));
 }
 
 export function onWillUpdateProps(fn: (nextProps: any) => Promise<void> | void | any) {
   const node = getCurrent()!;
-  node.willUpdateProps.push(fn);
+  node.willUpdateProps.push(fn.bind(node.component));
 }
 
 export function onMounted(fn: () => void | any) {
   const node = getCurrent()!;
-  node.mounted.push(fn);
+  node.mounted.push(fn.bind(node.component));
 }
 
 export function onWillPatch(fn: () => Promise<void> | any | void) {
   const node = getCurrent()!;
-  node.willPatch.unshift(fn);
+  node.willPatch.unshift(fn.bind(node.component));
 }
 
 export function onPatched(fn: () => void | any) {
   const node = getCurrent()!;
-  node.patched.push(fn);
+  node.patched.push(fn.bind(node.component));
 }
 
 export function onWillUnmount(fn: () => Promise<void> | void | any) {
   const node = getCurrent()!;
-  node.willUnmount.unshift(fn);
+  node.willUnmount.unshift(fn.bind(node.component));
 }
 
 export function onWillDestroy(fn: () => Promise<void> | void | any) {
   const node = getCurrent()!;
-  node.willDestroy.push(fn);
+  node.willDestroy.push(fn.bind(node.component));
 }
 
 export function onWillRender(fn: () => void | any) {
   const node = getCurrent()!;
   const renderFn = node.renderFn;
   node.renderFn = () => {
-    fn();
+    fn.call(node.component);
     return renderFn();
   };
 }
@@ -54,7 +54,7 @@ export function onRendered(fn: () => void | any) {
   const renderFn = node.renderFn;
   node.renderFn = () => {
     const result = renderFn();
-    fn();
+    fn.call(node.component);
     return result;
   };
 }
@@ -67,5 +67,5 @@ export function onError(callback: OnErrorCallback) {
     handlers = [];
     nodeErrorHandlers.set(node, handlers);
   }
-  handlers.push(callback);
+  handlers.push(callback.bind(node.component));
 }